diff -r 000000000000 -r 6474c204b198 dom/base/nsHistory.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/base/nsHistory.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 sw=2 et tw=79: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef nsHistory_h___
+#define nsHistory_h___
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "nsCOMPtr.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsIDOMHistory.h"
+#include "nsPIDOMWindow.h" // for GetParentObject
+#include "nsStringFwd.h"
+#include "nsWrapperCache.h"
+
+class nsIDocShell;
+class nsISHistory;
+class nsIWeakReference;
+class nsPIDOMWindow;
+
+// Script "History" object
+class nsHistory MOZ_FINAL : public nsIDOMHistory, // Empty, needed for extension
+                                                  // backwards compat
+                            public nsWrapperCache
+{
+public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsHistory)
+
+public:
+  nsHistory(nsPIDOMWindow* aInnerWindow);
+  virtual ~nsHistory();
+
+  nsPIDOMWindow* GetParentObject() const;
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
+
+  uint32_t GetLength(mozilla::ErrorResult& aRv) const;
+  void GetState(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
+                mozilla::ErrorResult& aRv) const;
+  void Go(int32_t aDelta, mozilla::ErrorResult& aRv);
+  void Back(mozilla::ErrorResult& aRv);
+  void Forward(mozilla::ErrorResult& aRv);
+  void PushState(JSContext* aCx, JS::Handle<JS::Value> aData,
+                 const nsAString& aTitle, const nsAString& aUrl,
+                 mozilla::ErrorResult& aRv);
+  void ReplaceState(JSContext* aCx, JS::Handle<JS::Value> aData,
+                    const nsAString& aTitle, const nsAString& aUrl,
+                    mozilla::ErrorResult& aRv);
+
+protected:
+  nsIDocShell* GetDocShell() const;
+
+  void PushOrReplaceState(JSContext* aCx, JS::Handle<JS::Value> aData,
+                          const nsAString& aTitle, const nsAString& aUrl,
+                          mozilla::ErrorResult& aRv, bool aReplace);
+
+  already_AddRefed<nsISHistory> GetSessionHistory() const;
+
+  nsCOMPtr<nsIWeakReference> mInnerWindow;
+};
+
+#endif /* nsHistory_h___ */